
var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var http = require("http");
var logger = require('morgan');
var { Server } = require("socket.io");
const errorHandler = require('./middleware/errorHandler');


var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var ordersRouter = require('./routes/orders');
var userfortuneRouter = require('./routes/userfortune');

var cors=require('cors')
var app = express();
var server = http.createServer(app);
var io = new Server(server, { cors: { origin: "*" } });

// 将 io 实例附加到 app.locals，以便在路由中访问
app.locals.io = io;

// Socket.IO 连接
io.on("connection", (socket) => {
  console.log("Client connected");
  socket.on("disconnect", () => {
    console.log("Client disconnected");
  });
});
app.use(cors())
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, "public")));

app.use('/', indexRouter);
app.use('/users', usersRouter);
app.use('/orders', ordersRouter);
app.use('/userfortune', userfortuneRouter);

// catch 404 and forward to error handler
app.use(function (req, res, next) {
  next(createError(404));
});

// error handler
app.use(function (err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get("env") === "development" ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render("error");
});

// 使用 server.listen 替代 app.listen
// server.listen(5000, () => {
//   console.log("Server running on http://localhost:5000");
// });
app.use(errorHandler)
module.exports = app;
